{\rtf1\deflang1033\deflangfe1033\margl720\margr720\margt360\margb360{\stylesheet{\fs20\lang1033\snext0 Normal;} {\s1\sb240\keepn{\*\pn \pnlvl1\pndec\pnprev1\pnstart1\pnsp144}\b\f0\fs30\lang1033 \sbasedon0\snext0 heading 1;} {\s2\sb200\keepn{\*\pn \pnlvl2\pndec\pnprev1\pnstart1\pnsp144{\pntxtb.}}\b\f0\fs26\lang1033 \sbasedon0\snext0 heading 2;} {\s3\sb180\keepn{\*\pn \pnlvl3\pndec\pnprev1\pnstart1\pnsp144{\pntxtb.}}\b\f0\fs22\lang1033 \sbasedon0\snext0 heading 3;} {\s4\sb160\keepn{\*\pn \pnlvl4\pnucltr\pnprev1\pnstart1\pnsp144{\pntxtb.}}\b\f0\fs22\lang1033 \sbasedon0\snext0 heading 4;} {\s5\sb140\keepn{\*\pn \pnlvl5\pncltr\pnprev1\pnstart1\pnsp144}\b\f0\fs20\lang1033 \sbasedon0\snext0 heading 5;} {\s6\tqc\lang1033\sbasedon0\snext6 footer;} {\*\cs16 \additive\super\sbasedon10 footnote reference;} {\*\cs18 \additive\sbasedon10 page number;}} {\fonttbl{\f0\fnil Times New Roman;}{\f1\fnil Courier New}{\f2005\fnil Courier New;}{\f2010\fnil Wingdings;}{\f2020\fnil Webdings;}{\f2\fnil Arial;}{\f3\fnil Arial;}{\f4\fnil LucidaHandwriting;}{\f5\fnil Symbol;}{\f6\fnil Symbol;}{\f7\fnil Ferdsch;}{\f30\fnil Myriad Cn Semibold;}{\f31\fnil Myriad Roman;}{\f50\fnil Courier New;}{\f51\fnil Times New Roman;}{\f52\fnil Arial;}{\f53\fnil Symbol;}{\f54\fnil Wingdings;}{\f55\fnil Wingdings 2;}{\f56\fnil Wingdings 3;}{\f57\fnil Webdings;}{\f58\fnil Arial Narrow;}{\f59\fnil Arial Unicode MS;}{\f60\fnil Cyberbit;}{\f61\fnil Morningstar 1U Light;}{\f62\fnil Calibri;}} {\colortbl;\red0\green0\blue0;\red127\green0\blue0;\red0\green0\blue255;\red127\green127\blue127;\red0\green51\blue153;\red255\green204\blue0;\red255\green255\blue255;\red246\green244\blue236;\red0\green0\blue0;\red255\green0\blue0;} {\*\bkmkstart filing_1}{\*\bkmkend filing_1}{\*\bkmkstart doc_1_1}{\*\bkmkend doc_1_1}{\*\bkmkstart page_1_12036229}{\*\bkmkend page_1_12036229}{\*\bkmkstart _bclpageborder1_12036229}{\*\bkmkend _bclpageborder1_12036229}\par\pard\plain\cf1\f51\fs19\qc SECURITIES AND EXCHANGE COMMISSION\par\pard\plain\cf1\f51\fs19\qc Washington, D.C. 20549\par\pard\plain\cf1\f51\fs19\qc \~\par\pard\plain\cf1\f51\fs19\qc Schedule 13G\par\pard\plain\cf1\f51\fs19\qc \~\par\pard\plain\cf1\f51\fs19\qc Under the Securities Exchange Act of 1934\par\pard\plain\cf1\f51\fs19\qc (Amendment No.: 2 )*\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Name of issuer:\~ Gentex Corp\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Title of Class of Securities:\~\~Common Stock\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql CUSIP Number:\~\~371901109\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Date of Event Which Requires Filing of this Statement:\plain\cf1\f51\fs19\b\ql December 31, 2017\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Check the appropriate box to designate the rule pursuant to which this Schedule is filed:\par\pard\plain\cf1\f51\fs19\ql \~\~(X) Rule 13d-1(b)\par\pard\plain\cf1\f51\fs19\ql \~\~(\~ ) Rule 13d-1(c)\par\pard\plain\cf1\f51\fs19\ql \~\~(\~ ) Rule 13d-1(d)\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class\plain\cf1\f51\fs19\ql of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover\plain\cf1\f51\fs19\ql page.\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the\plain\cf1\f51\fs19\ql Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other\plain\cf1\f51\fs19\ql provisions of the Act (however, see the Notes).\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql (Continued on the following page(s))\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\f0\fs4\par\pard\plain\f0\fs2\brdrt\brdrs\brdrw15\brdrcf2\brdrsp0\par\pard\plain\f0\fs4\par \page\par\pard\plain\cf1\f51\fs20\ql \~{\*\bkmkstart page_2_12036229}{\*\bkmkend page_2_12036229}{\*\bkmkstart _bclpageborder2_12036229}{\*\bkmkend _bclpageborder2_12036229}\par\pard\plain\cf1\f51\fs19\qc 13G\par\pard\plain\cf1\f51\fs19\ql CUSIP No.:\~\~371901109\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 1.\~\~NAME OF REPORTING PERSON\par\pard\plain\cf1\f51\fs19\ql \~\~S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~The Vanguard Group - 23-1945930\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 2.\~\~CHECK THE APPROPRIATE [LINE] IF A MEMBER OF A GROUP\par\pard\plain\cf1\f51\fs19\ql \~ \par\pard\plain {\trowd\cellx4568\cellx9720\trrh369 \pard\plain\intbl\cf1\f51\fs19\ql A.\cell\pard\plain\intbl\cf1\f51\fs19\ql B.\~\plain\intbl\cf1\f51\fs19\ul\ql X\cell{ {\trowd\cellx4568\cellx9720\trrh369\row}}}\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 3.\~\~SEC USE ONLY\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 4.\~\~CITIZENSHIP OF PLACE OF ORGANIZATION\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Pennsylvania\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql (For questions 5-8, report the number of shares beneficially owned by each reporting person with:)\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 5.\~ SOLE VOTING POWER\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~156,336\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 6.\~ SHARED VOTING POWER\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~34,094\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 7.\~\~SOLE DISPOSITIVE POWER\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~ 23,345,053\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 8.\~\~SHARED DISPOSITIVE POWER\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~ 167,636\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 9.\~\~AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~23,512,689\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 10.\~\~CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~N/A\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 11.\~\~PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~8.28%\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql 12.\~\~TYPE OF REPORTING PERSON\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~IA\par\pard\plain\f0\fs4\par\pard\plain\f0\fs2\brdrt\brdrs\brdrw15\brdrcf2\brdrsp0\par\pard\plain\f0\fs4\par \page\par\pard\plain\cf1\f51\fs20\ql \~{\*\bkmkstart page_3_12036229}{\*\bkmkend page_3_12036229}{\*\bkmkstart _bclpageborder3_12036229}{\*\bkmkend _bclpageborder3_12036229}\par\pard\plain\cf1\f51\fs19\qc SECURITIES AND EXCHANGE COMMISSION\par\pard\plain\cf1\f51\fs19\qc Washington, D.C. 20549\par\pard\plain\cf1\f51\fs19\qc \~\par\pard\plain\cf1\f51\fs19\qc SCHEDULE 13G\par\pard\plain\cf1\f51\fs19\qc Under the Securities Act of 1934\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Check the following [line] if a fee is being paid with this statement\~\~ N/A\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 1(a) - Name of Issuer:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Gentex Corp\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 1(b) - Address of Issuer's Principal Executive Offices:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~600 North Centennial Street\par\pard\plain\cf1\f51\fs19\ql \~\~Zeeland, Michigan 49464\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 2(a) - Name of Person Filing:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~The Vanguard Group - 23-1945930\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 2(b) \u8211? Address of Principal Business Office or, if none, residence:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~100 Vanguard Blvd.\par\pard\plain\cf1\f51\fs19\ql \~ Malvern, PA\~ 19355\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 2(c) \u8211? Citizenship:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Pennsylvania\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 2(d) - Title of Class of Securities:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Common Stock\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 2(e) - CUSIP Number\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~371901109\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 3 - Type of Filing:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~This statement is being filed pursuant to Rule 13d-1.\~\~An investment adviser in accordance with \u167?240.13d-1(b)(1)(ii)(E).\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 4 - Ownership:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~ (a) Amount Beneficially Owned:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~23,512,689\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~ (b) Percent of Class:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~8.28%\par\pard\plain\f0\fs4\par\pard\plain\f0\fs2\brdrt\brdrs\brdrw15\brdrcf2\brdrsp0\par\pard\plain\f0\fs4\par \page\par\pard\plain\cf1\f51\fs20\ql \~{\*\bkmkstart page_4_12036229}{\*\bkmkend page_4_12036229}{\*\bkmkstart _bclpageborder4_12036229}{\*\bkmkend _bclpageborder4_12036229}\par\pard\plain\cf1\f51\fs19\ql \~\~(c)\~\~Number of shares as to which such person has:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~(i)\~\~sole power to vote or direct to vote:\~\~156,336\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~(ii)\~\~shared power to vote or direct to vote:\~\~34,094\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~(iii)\~\~sole power to dispose of or to direct the disposition of:\~\~23,345,053\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~(iv)\~\~shared power to dispose or to direct the disposition of:\~\~167,636\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Comments:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 5 - Ownership of Five Percent or Less of a Class:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Not Applicable\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 6 - Ownership of More Than Five Percent on Behalf of Another Person:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Not applicable\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 7 - Identification and Classification of the Subsidiary Which Acquired The Security Being Reported on by the Parent Holding\plain\cf1\f51\fs19\ul\ql Company\plain\cf1\f51\fs19\ql :\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~See Attached Appendix A\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 8 - Identification and Classification of Members of Group:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Not applicable\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 9 - Notice of Dissolution of Group:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~Not applicable\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Item 10 - Certification:\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary\plain\cf1\f51\fs19\ql course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the\plain\cf1\f51\fs19\ql issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect.\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ul\ql Signature\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\~After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true,\plain\cf1\f51\fs19\ql complete and correct.\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Date:\~\~02/07/2018\par\pard\plain\cf3\f51\fs19\ql \~\par\pard\plain\li3366\cf1\f51\fs20\ql By\plain\li3366\cf1\f51\fs20\ul\ql /s/ Christine M. Buchanan\par\pard\plain\li3366\cf1\f51\fs20\ql Name: Christine M. Buchanan\par\pard\plain\li3366\cf1\f51\fs20\ql Title:\~ Principal\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\f0\fs4\par\pard\plain\f0\fs2\brdrt\brdrs\brdrw15\brdrcf2\brdrsp0\par\pard\plain\f0\fs4\par \page\par\pard\plain\cf1\f51\fs20\ql \~{\*\bkmkstart page_5_12036229}{\*\bkmkend page_5_12036229}{\*\bkmkstart _bclpageborder5_12036229}{\*\bkmkend _bclpageborder5_12036229}\par\pard\plain\cf1\f51\fs19\ql Appendix A\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql \~Vanguard Fiduciary Trust Company ("VFTC"), a wholly-owned subsidiary of The Vanguard Group, Inc., is the beneficial owner of\~\plain\cf1\f51\fs19\ql 132,327 shares or\~ .04% of the Common Stock outstanding of the Company as a result of its serving as investment manager of\plain\cf1\f51\fs19\ql collective trust accounts.\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\cf1\f51\fs19\ql Vanguard Investments Australia, Ltd. ("VIA"), a wholly-owned subsidiary of The Vanguard Group, Inc., is the beneficial owner of\~\plain\cf1\f51\fs19\ql 58,103 shares or \~.02% of the Common Stock outstanding of the Company as a result of its serving as investment manager of\plain\cf1\f51\fs19\ql Australian investment offerings.\par\pard\plain\cf1\f51\fs19\ql \~\par\pard\plain\sa176\cf1\f62\fs22\ql \~}